- Black cottonwood -- Northwest, Pacific1
- Ceratomyxa shasta -- Northwest, Pacific -- Molecular genetics1
- Host-parasite relationships -- Genetic aspects1
- Oncorhynchus -- Parasites -- Northwest, Pacific1
- Plant molecular genetics1
- Plants -- Reproduction -- Molecular aspects1
- Poplar -- Genetics1
- Population genetics1
- Russulaceae -- Northwest, Pacific -- Classification1
- Russulaceae -- Northwest, Pacific -- Molecular genetics1
- Russulaceae -- Northwest, Pacific -- Phylogeny -- Molecular aspects1
- Salmon -- Parasites -- Northwest, Pacific1
- Salmonidae -- Parasites -- Northwest, Pacific -- Molecular genetics1
- Trematoda -- Ecology -- Northwest, Pacific1
- Trematoda -- Life cycles -- Northwest, Pacific1
- Trematoda -- Northwest, Pacific -- Molecular genetics1